Santerno Sinus Penta - Page 375

PROGRAMMING GUIDE
SINUS PENTA
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C226 Power Down Enable Delay
C226
Range
1 ÷ 250
1 ÷ 250 ms
Default
10
10 ms
Level
ENGINEERING
Address
1226
Function
This parameter determines the Power Down delay after a mains loss is
detected by the drive.
If C225 = Alarm, this delay is applied to the alarm tripped.
NOTE
Setting a too long Power Down delay in case of mains loss can cause the drive to switch
off.
C227 Stop Ramp Time in Power Down
C227
Range
1 ÷ 32000
1 ÷ 32000 sec
Default
20
20 sec
Level
ENGINEERING
Address
1227
Function
Determines the gradient of the deceleration ramp occurring at Power Down
(after the first extra deceleration stage) if C225 = Yes.
IFD Control algorithm: C227
is the basic gradient for deceleration adjustment
when C225= Yes V.
C228 Start Increment of Ramp Gradient in Power Down
C228 Range
-100 ÷
10000
-1.00 ÷ + 100.00 %
Default
10
0.10%
Level
ENGINEERING
Address
1228
Function
Determines an increase in deceleration ramp gradient at the beginning of the
Power Down function. This is required to increase DC bus voltage.
C228 = 0% start deceleration is due to C227 (C228 has no effect)
C228 = 100%
start deceleration is 100 times faster than deceleration set in
C227 (start ramp = C227/100 sec)
C228 = -1.00% start deceleration is zero (deceleration ramp of infinite time)
C229 Improved Sensitivity of DC Bus Control
C229
Range
1 ÷ 250
1 ÷ 250
Default
1
1
Level
ENGINEERING
Address
1229
Function
Based on the DC bus voltage trend, this function allows detecting mains loss
in advance.
If the value for this coefficient is too high, erroneous mains loss conditions
can be detected, due to a sudden drop in DC bus voltage.